/*

 * Copyright (C) 2005 Apple Computer

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Library General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Library General Public License

 * along with this library; see the file COPYING.LIB.  If not, write to

 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,

 * Boston, MA 02110-1301, USA.

 *

 */

#ifndef RenderButton_h

#define RenderButton_h

#include "RenderFlexibleBox.h"

#include "Timer.h"

#include <wtf/OwnPtr.h>

namespace WebCore {

class RenderTextFragment;

// RenderButtons are just like normal flexboxes except that they will generate an anonymous block child.

// For inputs, they will also generate an anonymous RenderText and keep its style and content up

// to date as the button changes.

class RenderButton : public RenderFlexibleBox {

public:

    RenderButton(Node*);

    virtual const char* renderName() const { return "RenderButton"; }

    virtual bool isRenderButton() const { return true; }

    virtual void addChild(RenderObject* newChild, RenderObject *beforeChild = 0);

    virtual void removeChild(RenderObject*);

    virtual void removeLeftoverAnonymousBlock(RenderBlock*) { }

    virtual bool createsAnonymousWrapper() const { return true; }

    void setupInnerStyle(RenderStyle*);

    virtual void updateFromElement();

    virtual void updateBeforeAfterContent(PseudoId);

    virtual bool hasControlClip() const { return true; }

    virtual IntRect controlClipRect(int /*tx*/, int /*ty*/) const;

    void setText(const String&);

    String text() const;

    virtual bool canHaveChildren() const;

private:

    virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle);

    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);

    virtual bool hasLineIfEmpty() const { return true; }

    virtual bool requiresForcedStyleRecalcPropagation() const { return true; }

    void timerFired(Timer<RenderButton>*);

    RenderTextFragment* m_buttonText;

    RenderBlock* m_inner;

    OwnPtr<Timer<RenderButton> > m_timer;

    bool m_default;

};

inline RenderButton* toRenderButton(RenderObject* object)

{ 

    ASSERT(!object || object->isRenderButton());

    return static_cast<RenderButton*>(object);

}

inline const RenderButton* toRenderButton(const RenderObject* object)

{ 

    ASSERT(!object || object->isRenderButton());

    return static_cast<const RenderButton*>(object);

}

// This will catch anyone doing an unnecessary cast.

void toRenderButton(const RenderButton*);

} // namespace WebCore

#endif // RenderButton_h